[PATCH] acpi: devices: add a new test for smart battery device

[Alex Hung]

Signed-off-by: Alex Hung <alex.hung at canonical.com>
---
 src/Makefile.am                          |   1 +
 src/acpi/devices/battery/smart_battery.c | 145 +++++++++++++++++++++++++++++++
 2 files changed, 146 insertions(+)
 create mode 100644 src/acpi/devices/battery/smart_battery.c

diff --git a/src/Makefile.am b/src/Makefile.am
index c1dccf6..cda0a49 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -47,6 +47,7 @@ fwts_SOURCES = main.c 				\
 	acpi/ac_adapter/ac_adapter.c 		\
 	acpi/devices/ac_adapter/ac.c		\
 	acpi/devices/battery/battery.c		\
+	acpi/devices/battery/smart_battery.c	\
 	acpi/acpidump/acpidump.c 		\
 	acpi/acpiinfo/acpiinfo.c 		\
 	acpi/acpitables/acpitables.c 		\
diff --git a/src/acpi/devices/battery/smart_battery.c b/src/acpi/devices/battery/smart_battery.c
new file mode 100644
index 0000000..81ecd52
--- /dev/null
+++ b/src/acpi/devices/battery/smart_battery.c
@@ -0,0 +1,145 @@
+/*
+ * Copyright (C) 2017 Canonical
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+#include "fwts.h"
+
+#if defined(FWTS_HAS_ACPI)
+
+#include "fwts_acpi_object_eval.h"
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <inttypes.h>
+#include <string.h>
+
+#define FWTS_SMART_BATTERY_HID "ACPI0002"
+
+static ACPI_HANDLE device;
+
+static ACPI_STATUS get_device_handle(ACPI_HANDLE handle, uint32_t level,
+					  void *context, void **ret_val)
+{
+	FWTS_UNUSED(level);
+	FWTS_UNUSED(context);
+	FWTS_UNUSED(ret_val);
+
+	device = handle;
+	return AE_CTRL_TERMINATE;
+}
+
+static int smart_battery_init(fwts_framework *fw)
+{
+	ACPI_STATUS status;
+
+	if (fwts_acpica_init(fw) != FWTS_OK)
+		return FWTS_ERROR;
+
+	status = AcpiGetDevices(FWTS_SMART_BATTERY_HID, get_device_handle, NULL, NULL);
+	if (ACPI_FAILURE(status)) {
+		fwts_log_error(fw, "Cannot find the ACPI device");
+		return FWTS_ERROR;
+	}
+
+	if (!device) {
+		fwts_log_error(fw, "Smart Battery device does not exist, skipping test");
+		return FWTS_SKIP;
+	} else {
+		ACPI_BUFFER buffer;
+		char full_name[128];
+
+		buffer.Length = sizeof(full_name);
+		buffer.Pointer = full_name;
+
+		status = AcpiGetName(device, ACPI_FULL_PATHNAME, &buffer);
+		if (ACPI_SUCCESS(status)) {
+			fwts_log_info_verbatim(fw, "Smart Battery Device: %s", full_name);
+			fwts_log_nl(fw);
+		}
+	}
+
+	return FWTS_OK;
+}
+
+static void method_test_SBS_return(
+	fwts_framework *fw,
+	char *name,
+	ACPI_BUFFER *buf,
+	ACPI_OBJECT *obj,
+	void *private)
+{
+	static const char *sbs_info[] = {
+		"Maximum 1 Smart Battery, system manager/selector not present",
+		"Maximum 1 Smart Battery, system manager/selector present",
+		"Maximum 2 Smart Batteries, system manager/selector present",
+		"Maximum 3 Smart Batteries, system manager/selector present",
+		"Maximum 4 Smart Batteries, system manager/selector present"
+	};
+
+	FWTS_UNUSED(private);
+
+	if (fwts_method_check_type(fw, name, buf, ACPI_TYPE_INTEGER) != FWTS_OK)
+		return;
+
+	switch (obj->Integer.Value) {
+	case 0 ... 4:
+		fwts_passed(fw, "%s correctly returned value %" PRIu64 " %s",
+			name, (uint64_t)obj->Integer.Value,
+			sbs_info[obj->Integer.Value]);
+		break;
+	default:
+		fwts_failed(fw, LOG_LEVEL_MEDIUM, "Method_SBSReturn",
+			"%s returned %" PRIu64 ", should be between 0 and 4.",
+			name, (uint64_t)obj->Integer.Value);
+		fwts_advice(fw,
+			"Smart Battery %s is incorrectly informing "
+			"the OS about the smart battery "
+			"configuration. This is a bug and needs to be "
+			"fixed.", name);
+		break;
+	}
+}
+
+static int method_test_SBS(fwts_framework *fw)
+{
+	return fwts_evaluate_method(fw, METHOD_MANDATORY, &device,
+		"_SBS", NULL, 0, method_test_SBS_return, NULL);
+}
+
+static fwts_framework_minor_test smart_battery_tests[] = {
+	{ method_test_SBS, "Test _SBS (Smart Battery Subsystem)." },
+	{ NULL, NULL }
+};
+
+static int smart_battery_deinit(fwts_framework *fw)
+{
+	FWTS_UNUSED(fw);
+	fwts_acpica_deinit();
+
+	return FWTS_OK;
+}
+
+static fwts_framework_ops smart_battery_ops = {
+	.description = "ACPI smart battery device test",
+	.init        = smart_battery_init,
+	.deinit      = smart_battery_deinit,
+	.minor_tests = smart_battery_tests
+};
+
+FWTS_REGISTER("smart_battery", &smart_battery_ops, FWTS_TEST_ANYTIME, FWTS_FLAG_BATCH | FWTS_FLAG_TEST_ACPI)
+
+#endif
-- 
2.7.4